JavaScirpt オブジェクト配列のコールバック処理サンプル - Qiita

var list = [ { id: "A01", name: "yama" }, { id: "B02", name: "matu" }, { id: "C03", name: "moto" }, { id: "D04", name: "sato" }, ]; console.log(`${list.length} Members`); // "4 Members" // find let m; m = list.find(function (x) { return x.id == "C03"; }); console.log(`${m.id} is ${m.name}.`); // "C03 is moto." // 簡略形式（上記と同じ） m = list.find(x => x.id == "C03"); console.log(`${m.id} is ${m.name}.`);